Doc tweak.

[gnulib.git] / m4 / inet_pton.m4

diff --git a/m4/inet_pton.m4 b/m4/inet_pton.m4
index 58f2c31..a72cd23 100644 (file)
--- a/m4/inet_pton.m4
+++ b/m4/inet_pton.m4
@@ -1,4 +1,4 @@
-# inet_pton.m4 serial 3
+# inet_pton.m4 serial 5
 dnl Copyright (C) 2006, 2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -6,6 +6,12 @@ dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_INET_PTON],
 [
+  dnl Persuade Solaris <arpa/inet.h> to declare inet_pton.
+  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
+  AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS])
+  ARPA_INET_H='arpa/inet.h'
+
   AC_REPLACE_FUNCS(inet_pton)
   gl_PREREQ_INET_PTON
 ])
@@ -13,6 +19,9 @@ AC_DEFUN([gl_INET_PTON],
 # Prerequisites of lib/inet_pton.c.
 AC_DEFUN([gl_PREREQ_INET_PTON], [
   AC_CHECK_DECLS([inet_pton],,,[#include <arpa/inet.h>])
+  if test $ac_cv_have_decl_inet_pton = no; then
+    HAVE_DECL_INET_PTON=0
+  fi
   AC_REQUIRE([gl_SOCKET_FAMILIES])
   AC_REQUIRE([AC_C_RESTRICT])
 ])